Fire-alarm signaling apparatus.



J v. SHIBR, SR. & LLA VERGNE, SR.

FIRE ALARM SIGNALING APPARATUS. APPLICATION FILED APE.12, 19121.I

; imams@ Patented Nov. 12,1912. ff Y 50 ZZ w Witnesses Attorneys Y primary object of the invention being the.

uNrrED srnrEs Ea'rENr oEEicE.

JOHN 'VICTORSHIER,`SR., AND JULES LA VERGNE, SR., 0F CHARLESTON, SOUTH CARDLINA.

FIRE-ALARM SIGNALING AIEEARA'IUS.

ASpetcation of Lettersla'tent. Application filed April 12, 1912. Serial No. 690,454.

Patented Nov. i2, i912.

To altwhom it may concern:

Be it known that we, J oHN V.S H1ER, Sr., and JULES LAVERGNE, Sr., citizens of the United States, residing at Charleston, in the county of Charleston, State of South Carolina, have invented a new vand, useful Fire-Alarm Signaling Apparatus, of which the following isa specification. t

The present invention relatesto improvements in fire alarmsignaling. apparatus, the

provision of an attachment perably connected to a fire alarm 4box to factuate a visual and audible ,signal adjacent the box whether a false or'true alarm is sent and to thereby lessen the possibilities of false alarms.

vVith the foregoingA and other objects in view which will appear as the description proceeds, the invention resides in the combination and arrangement of parts and in the details of construction hereinafter de.-`

present invention attached thereto, the aux-V iliary door being open with the parts shown 'in dotted lines 1n the position they assume when actuating the local signal. Fig. 2 isa vertical central sectional view through the fire alarm box with the auxiliary mechanismn in circuit open position. Fig. 3 is a diagrammatic View showing a simple electric circuit used in connection .with the present detection device and the regular re alarm circuit.

Referring to the drawings, the numeral 1 designates the usual ire alarm box havingan inner door 2, which is similar to the door now employed to permit'of access to the distant alarm mechanism therewithin. A pin 3 is connected to and carried by 'the door 2 and pro-jects outwardly and normally enters the apertures 4 and 5, respectively,

formed in therear wall 7 of the outer or auxiliary `door 8 and of the reciprocatory block 6. Y

The block 6 is mounted in the casing of Y the door'8 and is`provided with the lprojection 9 at one end thereof and with the rectangular aperture 10 for the reception of4 the'eccentric 11. The eccentric 11 is actuated by means of the removablekey 12, which 1s carried by the proper oflicial or party in authority, who places the door 8 in the normal closed position, or as shown in Fig. 2., after an alarm has been sent. The coil spring `15 tends to move the block 6 downwardly to the dotted line position, as

shown in Fig. 1. This spring is held in I place by the plate 13 and pin 14, whose lowerend is slidably mounted in the block 6. By this construction it is evident thatthe rotation of the eccentric 11 to the position as shown in Fig. 2, will elevate the block 6 against thev Vtension of the spring 115 and `bring into registration the aperture 5 with the aperture 4. The auxiliary door is now closed and the pin 3 enters the apertures 4 and 5 and thus retains the block 6 elevated, with the projection 9. out of engagement with the upper spring contact 17. The free end of said contact 17 is disposed to, when `the block. 6 is propelled downwardly, as-

sume the dotted line position Fig. 1, and the `projection 9 pushes the contact 17 into en.-

gagement with the contact 18'to close the local signal circuit.

As clearly shown in Fig. 3, the electricalA circuit controlled by the contacts 17 and 18, is through theconductor `19, the visual alarm 20, the audible alarm 21 and the fuse 22 -to the line conductor 23, the conductor 24C conneet-ing the other line conductor 25 to the spring Contact 18. It will thus be seen that when the parts are in the position as shown in Fig. 2, the contacts 17 and 18 open, that the opening of the auxiliary door 8 will cause the withdrawal of the pin 3 from the apertures 4 and 5, releasing the block 6, so that the spring 15 will propel the block 6 downwardly and cause the insulating projection 9, to push the Contact 17 into engagement with the cont-act 18 and close the cir-l cuit including the visual and audible alarms. If this alarm is ,actuated previous to the opening of the door 2, it is evident that a local signal will be given, said signal being placed at any desired point, either at the pole carrying the l'ire alarm box, or in police or fire department stations, thus giving a warningthat the lire alarm box is being opened, either to send a true or a false alarm.

From the foregoing description taken in connection with the drawings, it is evident A the combination with a re alarm lauxlllary door therefor, a pair of contacts that with a local signal ofv this character is provided a simple means to assist in lessenlng the sending in of false Ialar1ns,"and that by the light 20, a visual signal will be actu-y .ated to assist the patrolman in locating the point from which the alarm was sent,A `It will also be noted that When'thevauxiliary door 8 has been opened thatan-unauthor-`- 1zed person cannot close the same, so that the various audible and visual alarms will.

be'energized until the Eroper party in au thority will -actuate e slidlng block 6 against the spring 15 to aline the opening 5 with the opening 4 to permit the pin 3 to enter the opening 5 when the door 6 is fully closed? What is claimed is: l. In asi al for ire alarm apparatus,

box, of an carried by the door, an lauxiliary circuit in-V cluding a source of electrical energy, said contactsand a visual and an audible alarm, a spring actuated contact closer carried by the auxiliary door, and co-acting means carried by the auxiliary door and box for lock,

lng the spring actuated contact closer incarried by the door, an auxiliary circuit in- ,cluding a source of electrical energy, said contacts and a visual'andan'audiblealarm, a vertically slidable spr' projected block A.carried by the auxiliary oor, a projectionf cb-acting .means carried by the blockfandv'the box for locking the block in retracted positionv and when .`closed.

3. vIn a signal for'lfire alarm apparatus, the combination `with a irealarm box, of an auxiliary door therefor, a pair of normally open contacts 'carried bythe door, an auxiliary circuit includinga sourceof electrical theA auxiliary door is said contacts and a 'visual and an ener7 audi e alarm, a vertlcally slidablesprlng rojected block carried .by the auxiliary oor, a pro'ection carried by said block to engage an close the 4contacts when the block is projected, key aotuatedmeans for retracting 'the block, `said 'block being provided with an aperture -therein and va pin f carried by the ire alarm box and in theathto register with ythe aperture 'of the bloc to retain the. block retracted when the auxilialy door is closed. L

n testimony that we claim the-foregoing as our own, we have'` hereto aiixedour-signatures in the presence of two witnesses.

JOHN VICTOR SHIER SR.

y JULES LA visserie), sa' Witnesses: v

J. H. Mosnmr,

H. D. HAsnnN.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

Washington, D. C. 

